How long does Corona virus live on surfaces and in the air?

Drs. Ted Rosen/George Martin comments: as you look at the SARS-CoV-2’s ability to remain airborne consider door handles harboring the virus for 2 days, tight quarters (elevators) and small rooms where a sneeze could leave virus aerosolized for hours.

Also of note: SARS-CoV-2 viral shedding lasted a mean of 20 days (longest 37 days) when measured in COVID-19 patients. This therapy can significantly reduce viral shedding.

Short take:
Aerosol (airborne): 3h
Copper: 4h
Plastics: 72h
Cardboard: 24h
Stainless Steel: 48h